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Thread: how come i hear 3 and 4 wtf?
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07-02-2010, 04:37 PM #1
- Join Date
- Mar 2010
- Location
- San Diego CA
- Posts
- 35
Midnight Blue- 1998 Pontiac Firebird
how come i hear 3 and 4 wtf?
Lol how many 02 sensors are on are cars? i see three o2 sensors and three cats on my car its a 98' firebird formula ls1 a4 2nd owner and i dont look at her belly much lol but it has a 1st owner catback, so far for the oil changes and fuel filter once i have to say while im all grimy under there i tend to not look around much lol get done and get out from under it lol asap
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07-02-2010, 04:44 PM #2
u have 4 sensors.....2 fronts 2 rears and 2 cats
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07-02-2010, 05:49 PM #3
- Join Date
- Mar 2010
- Location
- San Diego CA
- Posts
- 35
Midnight Blue- 1998 Pontiac Firebird
i replaced 3 o2 sensors Bosch 13444 the 3rd 3 days ago for a po157/po161 and a po161/pd SES light, and each was behind a cat i will take and post pics because its weird to me also i have 2 front cats off of the factory exhaust manifolds and the last one the third is under pass floor board and for each cat theres 1 o2 sensor 3 total, after that its a catback by previous owner and havent seen a 4th of either, cat or 02 wtf carfax says car was from TX but dont mean much? dont worry am wanting to try out my new digi camera to help you guys out also over the weekend hopefully. just wish had it on a lift for clarity but ill try... it passed smog last yr here in CA just fine but 3 of each is weird....
Last edited by travs98ls1; 07-02-2010 at 06:12 PM.
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07-02-2010, 05:56 PM #4
- Join Date
- Mar 2010
- Location
- San Diego CA
- Posts
- 35
Midnight Blue- 1998 Pontiac Firebird
Anyone have any pics of there factory Y pipe cats /o2s i can look at?
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07-02-2010, 06:38 PM #5
the sensors are connected.....theres 1 on each end....a front and rear 02 sensor on each side........im a little confused at what your trying to say....ill get some pics of my stock stuff thats up in my attic 2marro for u
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07-02-2010, 06:42 PM #6
ls1= 4 o2's 2 front, 2 rear.. 2 cats
3800-II = 3 o2's 2 front one rear.. 1 cat
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07-02-2010, 06:46 PM #7
Here are the pics that I can find:
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